Tannoy or Volti

It's nice to have a full complement of amps.  

Klipsch is or has upgrading the LaScala and Klipschorns.  The changes look very positive.  Otherwise Volti Rival.

I am told the Tannoy has a very warm sound.  I only heard a smaller one, Cheviot or Arden.  

Any of these should do a lot of things very well.  Otherwise, I always hear Joseph Audio praised very highly.  Other end of efficiency  but not that hard to drive.

I have the XA25 with horns after 5 years, I  have everything sounding pretty good. But I  am used to it I guess.  I go way back, almost. Advents, etc

Here is what I've heard myself and read.  I assume other models would have a similar sound signature. 

Joseph Audio.  Most widely praised speaker here.  IMO. I have not heard.

Magnapan 3.7. Always beautiful, natural sound.  Your x250 would drive them.  Imposing size.

Wilson.  I didn't care for those.  Sasha DAW with audio research monoblocks.  Distant and dull.  

Revel.  These have a very appealing sound with nice bass.  The ones I heard may be too high.

I always liked the big Dunlavy sound.  My memory may be crossed but I  think Legacy would be worth a look.  Wide price range.

The list is all over but you're on square one, again. Good luck